Why We Love This:Designed by a former Samsung engineer, this award-winning line of heavy duty, commercial-grade food storage containers might be the last you’ll ever own. Just slide, snap and lock lid securely in place using the patented single hinge locking system. Featuring a silicone seal lid, the containers are airtight and leak-proof. Food stays fresh longer and transports without spills. With Wellslock’s Limited Lifetime Warranty, it’ll take doomsday to destroy these beauties!